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3 years ago

I need an answer please ASAP |4+7|-|4-7|

Mathematics

2 answers:

Leto [7]3 years ago

8 0

Answer:

Step-by-step explanation:

$Hey~There!$

________________________

➜ Solve each part:

$4+7=11$

$4-7=-3$

➜ Now we need to change any negatives:

$|-3|=3$

When you see $|x|$ it means absolute value; Which is a fancy way of saying "No negative answers."

➜ Now we subtract:

$11-3=8$

________________________

So with the above work shown the answer would be $\bold8$ .

________________________

$Hope~this~helps~Mate!\\-Your~Friendly~Answerer,~Shane$ ヅ

Rufina [12.5K]3 years ago

3 0

<h2>Answer:</h2><h2>8</h2><h2>Hope this helps!!</h2>

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The graph of a function f(x)=5to the power of x -5 contains the point (2,y) what is the value of y

Mila [183]

I believe this this the function.

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then

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then

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then

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3 years ago

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charle [14.2K]

1/2 (a+b)h

1/2 (a+16)14=132

8×14=112

14÷2=7

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2 years ago

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Alenkasestr [34]

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2 years ago

Find a homogeneous linear differential equation with constant coefficients whose general solution is given by

frez [133]

Answer:

$y" + 2y' + 2y = 0$

Step-by-step explanation:

Given

$y=c_1e^{-x}cosx+c_2e^{-x}sinx$

Required

Determine a homogeneous linear differential equation

Rewrite the expression as:

$y=c_1e^{\alpha x}cos(\beta x)+c_2e^{\alpha x}sin(\beta x)$

Where

$\alpha = -1$ and $\beta = 1$

For a homogeneous linear differential equation, the repeated value m is given as:

$m = \alpha \± \beta i$

Substitute values for $\alpha$ and $\beta$

$m = -1 \± 1*i$

$m = -1 \± i$

Add 1 to both sides

$m +1= 1 -1 \± i$

$m +1= \± i$

Square both sides

$(m +1)^2= (\± i)^2$

$m^2 + m + m + 1 = i^2$

$m^2 + 2m + 1 = i^2$

In complex numbers:

$i^2 = -1$

So, the expression becomes:

$m^2 + 2m + 1 = -1$

Add 1 to both sides

$m^2 + 2m + 1 +1= -1+1$

$m^2 + 2m + 2= 0$

This corresponds to the homogeneous linear differential equation

$y" + 2y' + 2y = 0$

6 0

3 years ago

A barrel of crude oil contains about 5.61 cubic feet of oil. How many barrels of oil contained in 1 mile (5280 feet) of a pipeli

8_murik_8 [283]

1)volume of the pipeline

The pipeline is a cylinder, therefore;
Volume (cylinder)=πr²h
r=radius
h=height of the cylinder

diameter=6 in*(1 ft / 12 in)=0.5 ft
raius=diameter / 2=0.5 ft / 2=0.25 ft.
height=5280 ft

Volume (pipeline)=π(0.25 ft)²(5280 ft)=330π ft³≈1036.73 ft³.

2) we calculate the number of barrel
1 mile of oil in this pipeline is 330π ft³ of oil.

1 barrel of crude------------------5.61 ft³
x----------------------------------330π ft³

x=(1 barrel*330π ft³) / 5.61 ft³=184.8 barrels

3) we calculate the price.

1 barrel---------------$100
184.8 barrels---------- x

x=(184.8 barrels * $100) / 1 barrel=$18,480

Solution: ≈$18,480

6 0

3 years ago

I need an answer please ASAP |4+7|-|4-7|​

I need an answer please ASAP |4+7|-|4-7|